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锚碇作为悬索桥的主要承力结构物,它的稳定性是十分重要的。针对润扬大桥北锚碇基础,基于三维有限元仿真分析模型的计算成果,对锚碇基础抗滑移、抗倾覆稳定进行了计算分析。研究分析了基础前、后墙土体压力对锚碇基础稳定性的影响,并且分析了基底接触面摩擦强度指标对抗滑移稳定性的敏感程度。通过研究分析,得出了悬索桥锚碇基础稳定性分析的一些有益的结论。
Anchorage as the main bearing structure of suspension bridge, its stability is very important. According to the North Anchorage foundation of Runyang Bridge, based on the calculation results of the three-dimensional finite element simulation analysis model, the anti-slip and anti-overturning stability of the anchorage base are calculated and analyzed. The influence of the soil pressure on the stability of anchorage base was studied and analyzed, and the sensitivity of base contact surface friction index to the stability against slippage was also analyzed. Through the research and analysis, some useful conclusions are drawn for the stability analysis of anchorage foundation of suspension bridge.